Campanario is a reef dive located off Isla del Caño, Costa Rica, suitable for beginner divers. The site features a reef structure at depths ranging from 13 to 20 metres, with an average depth of 16 metres. Divers can expect mild currents and visibility between 10 and 25 metres. Water temperatures remain consistent throughout the year, typically between 27 and 28 degrees Celsius. Access to this site is by boat only, and night diving is permitted. Divers should remain vigilant regarding surface boat traffic and use a surface marker buoy before ascending to ensure safety.

Ranger Station Beach, or Playa Estación, is the primary shore entry point on Isla del Caño, situated directly in front of the SINAC ranger station. This reef site features rocky outcrops at both ends of the beach. Divers and snorkellers can expect depths ranging from 2 to 8 metres, with an average depth of 5 metres. Conditions vary, with visibility typically between 8 and 30 metres and moderate currents. Water temperatures are generally warm, between 28 and 30 degrees Celsius, though cooler thermoclines may occur. Hazards include jellyfish, sharp coral, and surf. The site is suitable for beginners and offers a typical dive duration of 45 minutes.

Las Cavas is a reef and pinnacle site located at Isla del Caño, Costa Rica. The site is suitable for beginners, with an average depth of 8 metres. Access is strictly by boat. Conditions at the site are variable, with visibility ranging from 6 to 30 metres and water temperatures between 28 and 30 degrees Celsius. Divers should be aware of potential hazards including boat traffic, rip currents, strong currents, and sharp coral. Guided tours and air fills are available through local dive shops to support diving activities at this location.

The Cave at Isla del Caño offers a combination of open reef and cave formations at depths between 18 and 25 metres. Divers can expect consistent visibility of 30 metres. The site is suited for intermediate divers, requiring boat access due to its distance from shore. Marine life frequently encountered includes whitetip reef sharks, King Angelfish, and various triggerfish, groupers, and wrasses. Within the cave crevices, divers may spot snowflake, panamic green, and yellow-edged morays. While currents are typically mild, they can strengthen, and divers should remain aware of their position. Always conduct a thorough site assessment from the boat before entry, as surge and swell may occur.

El Ancla is a reef and artificial reef site located at Isla del Caño. The topography features large volcanic rock mounds interspersed with scattered coral heads. The site is named for a 19th-century anchor resting on the seabed, which can be visible from the surface when visibility is high. Depths range from 5 to 17 metres, with an average of 10 metres. Access is by boat only, and the site is suitable for beginners. Divers should be aware of potential strong currents. Visibility typically ranges between 15 and 30 metres, and water temperatures remain warm throughout the year, generally between 27 and 29 degrees Celsius.

El Jardín is a shallow reef site located at Isla del Caño, known for its high concentration of hard corals including Pocillopora and Porites. The site ranges from 5 to 10 metres in depth, with an average of 8 metres, making it suitable for both divers and snorkellers. Access is by boat only, and the site is subject to moderate currents and occasional surf. Visibility varies between 8 and 25 metres. Divers should be aware of sharp coral and potential thermoclines at depths of 15 to 20 metres, where temperatures drop suddenly. Water temperatures typically range from 28 to 30 degrees Celsius.

Isla del Caño features a combination of natural hard coral reefs and artificial reef structures located 19 kilometres from the coast. Divers typically experience depths between 5 and 35 metres, with an average of 18 metres. The site is accessible only by boat and is suited for intermediate divers due to moderate currents and potential thermoclines that can drop temperatures to 16°C. Marine life is diverse, with frequent sightings of whitetip reef sharks, king angelfish, redlip parrotfish, triggerfish, guineafowl puffer, wrasses, and razor surgeonfish. Rarer encounters include harlequin shrimp and various moray eel species. The site also offers night diving opportunities and is well-regarded for snorkelling.

Bajo del Diablo is a massive underwater mountain located 16 kilometres from shore near Isla del Caño. The site features a reef, pinnacle, and wall topography, with the uppermost pinnacle rising to between 5 and 6 metres of the surface. Divers and snorkellers can expect depths ranging from 5 to 35 metres. Conditions vary, with moderate currents, surge, and visibility typically between 15 and 30 metres. Due to the potential for strong currents and surge, this site is suited for advanced divers. Boat access is required for all visits. Species recorded around this area include whitetip reef sharks, king angelfish, various moray eels, bluefin trevally, pufferfish, wrasses, triggerfish, parrotfish, and surgeonfish.